Infrastructure projects like the Tokyo Gate Bridge are now turning to LED lighting because of its economical and environmental advantages. But these devices still need the right current-limiting ...

Fig 1. This voltage regulator circuit (a) uses green LEDs as both the stabilization elements and as the voltage indicators at the front-panel switch (b). Fig 2. The addition of resistor R4 to the ...

Editors’ Note: This segment is adapted from Chapter 2 of Power Supplies for LED Driving by Steve Winder. Since an LED behaves like a constant voltage load, it can be directly connected to a current ...